A new caffeoylgluconic acid derivative from the nearly ripe fruits of Evodia rutaecarpa

摘要

A new caffeoylgluconic acid derivative, tran.s-caffeoyl-6-0-D-gluconic acid methyl ester (1), together with two known compounds named ￡rans-caffeoyl-6-0-D-glucono-7-lactone (2) and frans-caffeoyl-6-O-D-gluconic acid (3), was isolated from the nearly ripe fruits of Evodia rutaecarpa (Juss.) Benth.. These compounds were isolated by various separation methods associated with the UPLC-Q-TOF-MS technique. Their structures were elucidated on the basis of extensive spectroscopic methods.